Furnace.



PATENTED FEB. 28, 1905. W. H. RILEY.

FURNACE.

APPLIUATION HLBD APR. 1s, 1903.

SSHEBTS-SHEET 1.

PATBNTED FEB. 28, 1905. W. H. RILEY.

FURNAGE.

APPLICATION FILED APR. 18. 190s.

3 SEEETSSHEIBT 2.

51m van tez PATENTBD FEB. 28, 1.905.

W. H. RILEY.

FURNAGE.

APPLIUATxoN FILED Ayn. 1a, 1903.

Patented February 26, Itttit,

WILL'iAM ii. RllLEY, Oli1 iAYTON, Utili).

SPECIFXCATION forming part of Letters Patent No. 783,592, dated February 28, 1905.

Application filed April 18, 1903. Serial No. 153,231.

Be it known that I, W TLLIAM H. RILEY, a citiu zen ofthe United States, residing at VDayton, in the county of iviontgomery and State of tlhio, have 1n Vented certain new and useful .I mprovements in Furnaces; and I do hereby declare the following to be a iull, clear, and exact de scription ofthe invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention pertains to certain improvements in hot-air furnaces, and particularly to the heatingdrum type.

Une object in View is the provision of means for exposing a maximum of lmating-surface to the products of combustion.

A second object is the provision of elements composing a furnace which are susceptible of being readily and easily assembled and lismantled.

With these and other objects in view the invention consists in the combination, with a lirepot, ofa drum in connnunication therewith, a fresh-air supply beneath said drum', a chamber inclosing said supply, tubes affording communication between said drum and inclosing chan'iber, and a stack in communication with said chamber and drum.

.lt further consists of a lirepot made up ol sections provided with flanges at their edges and each with afiange at one of its ends, means securing said sections together, and means supporting the'same by their end `flanges.

it still further consists in the combination, with lieating means, of an annular' cz'tsing inclosing the same and composed of sections` each section being formed at one end with a laterally-projecting flange and a ring i'ixed to the inner face and extending beyond the edge thereof.

ft further embodiment of the invention involves the combination, with heating means and a casing inclosing the same. of a hood capping said casing, a tank within said hood and opening' therein, -and means extending outside the hood for siuplying water to the said tank.

The invention also consis s ol certain other novel constructions, combinations, and arrai'igements .of parts, as will be hereinafter fully described and claimed.

ln the accompanying' drawings,Figure l represents a perspective view of a fm'nace embodying the features ofthe present invention. Fig. 2 relnesents a longitudinal vertical eentrai section taken on the plane of line a 2 of Fig. 3. Fig. 3 represents a transverse hor'izontal section taken on the plane of line 3 3 of Fig. 2. Fig. a represents a similar view on the plane of line t 401 Fig. 2. Fig. 5 rep* resents a longitudinal vertical central section taken on the plane of line 5 5 of Fig. 3 at right angles to the plane ofthe section shown in Fig. 2. Fig. 6 represents a detail perspective view of the iirespot. Fig. 7 represents a detail perspective View of the hot-water tank.

lt is well understood by those skilled in the art to which thepresent invention' relates that it is extremely desirable to expose as much area to the action of the products of combustion as is possible for extracting the heat and preventing its loss through the stack or tlue. ln order to attain this and other valuable results, I employ the embodiment illustrated in the accompanying drawings, in which- 1 indicates a' suitable fresh-air-supply pipe discharging' within a chamber formed by an annular casing or housing 2, forming the base of the present improved furnace. 1 have called the housingor chamber 2 annular, although it does not form a complete ring, but is broken for the admission of an ash-pit 3, above which is arranged a [ire-pot 4. the lire-pot it is mounted a drum 5, which is apertured in its bottom, and such aperture registers with the upper end of the lire-pot LL, said pot being formed ol a series of sections (i, each of said sections being formed at each edge with a flange 7 and at its upper end with a 'flange 8, the iiauges 7 being secured together with a piece of asbestos or suitable packing il'iterposed between contiguous lianges, forming close joints, the llanges ol each section 6 being .secured to the flanges of the next contiguous sections by suitable rivets or bolts. The ilanges 8 are designed to pass between a semi-anmilar bracket 9, carried by Above the bottom of the drum o just outside the plane of the aperture formed therein, and said bottom, whereby the said fire-pot is supported and retained in its givelrrelation 4to said drum 5. The ash-pit 3 may be made bodily removable, and the fire-pot 4 may be readily removed by simply removing the bolts securing the fianges together and taking the said fire-pot out in sections or the parts as a whole removed by sliding same off bracket 9. Above the fire-pot the drum 5 is apertured, as at 10, and closed by a suitable door carried bya removable shield 10, said aperture permitting of the introduction of fuel to the firepot through the aperture in the bottom of the drum 5, any suitable fire-wall .surrounding the said aperture in the bottom and being secured to the shield 10, contacting with drinn 5 at each side of the aperture 10. plane of the grate of the lire-pot said pot may be formed with a suitable clinker-door 11.

The drum 5 is preferably cylindrical and is surrounded by an outer casing 12, made up of a number of sections, each section being' provided at one end with an annular outwardlyprojecting flange 13 and carrying a ring 14, fixed to the inner face thereof and extending' beyond the end of the given section for engaging' and retaining in position the next higher or superposed section. The superposed section may. if desired, be formed with a fiange 15, similar to flange 13 of the next lower section, for forming a close joint therewith, the rings 14 preventing escape of air through the joints between said sections. The drum 5 has its bottom penetrated by a series of flues 16, said fiues being arranged in a circle and communicating at their lower ends with the chamber 2. The upper ends of tubes 16 are flared, whereby the points between the said ends and the bottom of drum 5 are made gas-tight, and the flare of the said ends facilitate the passage of smoke and gas down through said tubes. A smoke stack or flue 17 communicates with the chamber 2 through a relatively small laterally-projecting' chamber 18, and said stack also communicates with the drum 5 approximately midway of the length of said drum, as at 19, a damper 20 being arranged for controlling the passage of smoke through the pipe 19,' and a similar damper 21 may be arranged in the stack 17 for controlling the passage of products of combustion from the chamber 2.

A series of tubes 22 extend from beneath the bottom of the drum 5 through the body portion of the same and up through the top thereof, discharging into an annular hood 23 for directing the contained hot air to the desired point for utilization. rllhe hood 23 is formed with an inverted conical cover 25, and spaced below the apex of and within the said hood is arranged a receptacle 26, preferably annular in shape and of sufiicient size for con- ()n the taining a comparatively large quantity of water. A tube 27 leads from the base of the receptacle 26 beyond the wall of the hood 23 and communicates with a suitable gage 28 for indicating the quantity of water contained within the receptacle. The receptacle 26 may be supported in any suitable manner, but preferably by brackets 29, depending from the top 25 of hood 23. At the apex of the top 25 is formed an aperture communicating' with a water-supply chute 30, said chute extending, preferably, to the outer edge of the hood 23 for facilitating the introduction of water into the receptacle 26. In order to prevent the escape of steam through the aperture formed in the hood 25 and through chute 30, any suitable valve 31 may be employed for closing the same.

It will be observed that the products of combustion rising from the fire-pot 4 would ordinarily be free to contact with the upper end of drum 5 with more or less deteriorating effects; butl overcome this difficulty and gain a decided advantage by introducing' a removablc tank 32 within the drum 5 in the vertical plane of the discharge from said fire-pot. The tank 32 may be of any suitable shape and may be provided with a discharge-spigot 32', if desired, and is designed to provide hot water for domestic purposes.

The outer wall of chamber 2 may be apertured at any suitable points, as at 34 34, and formed with a slide or other suitable doors for cleaning-out purposes, which doors may be manipulated for checking' the draft, if

desired.

The outer casing 12 is cut away for the admission of the ash-pit, fire-pot, and chargingdoor, and this cut-away portion may be provided with a suitable grooved lining' 35, the groove of which is designed to receive the registering edges of the various sections of the said outer casing 12, whereby the said sections will be firmly held in proper position.

In operation the fire is maintained within the fire-pot 4, and the products of combustion rise into the drum 5, and at the time the fire is being started said products are permitted to escape through the pipe 19; but after the fire has been burning for a sufiicient time the said pipe is closed by its damper, and the products of combustion are thereby directed down the flues 16 into the chamber 2, from which the same escape through the auxiliary chamber 18 up the stack 17. The cold air supplied to the space inclosed by the chamber 2 is of course warmed by said chamber and as it rises is still further warmed by the fines 16, part of said air passing about the drum 5, between said drum and the outer casing, and into the chamber above the drum formed by the hood 23. The remainder of said air moves on up tl'lrongh tubes 22,being heated while passing through the interior of the drum 5 and be- IOO IIO

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ing discharged at the upper end of said tubes into the space inclosed by lthe hood 23. The heated air entering the hood 23 is of course quite dry, and in order to moisten the same l provide the receptacle 2G, and vapor risingl from the same will permeate the air within the hood, and such air is then directed out the leads Qto the points of utilization.

Although li have specifically set forth the details of one embodiment of the present invention, yet it will be readily apparent that many slight alterations may be made as to the size, shape, and minor details without the slightest deviation from the spirit and scope of the present invention.

It will be observed that the chamber 2 is made separate and independent from the outer casing, forms a base therefor, and may be removed and a new one substituted when desired, said chamber being formed with a section-receiving ring;1 and an annular laterallyextcnding Vflange similar to the various seetions composing;l the outer cz sing.

The ash-pit 3 is in practice supported in any preferred manner---as, :for instance, as illustrated in the accompanying' (,lrawings, by means of a suitable block 3l, arranged beneath the inner edge of said ash-pit, and a bracket 3, positioned beneath the outer edge thereof.

.Having thus fully described my invention, what .l claim as new, and desire to secure by Letters Patent, ism- 1. ln a furnace, the combination with an inclosingcasing, of an ash-pit bodily removable therefrom, and a lire-pot supported .in said casing' above said ash-pit` said lire-pot being composed of indepemlentlyrennovable sections.

2. In a furnace, the combination with a suitable drnm, of a bracket carried thereby, a removable tire-pot, and means carried by said lire-pot engaging said bracket for supporting` the pot in proper relation to said drum.

3. l ln a fu rnace, the combination with a drum hav-ing an aperture in its bottom, of a bracket dependingI from said bottom and partially su rrounding' said aperture, and a fire-pot formed with a iiange designed to removably engage said bracket.

Il. ln a furnace, the combination with heatinp,l means, of a hood formed with an inverted conical cover apertured centrally, and a receptacle spaced beneath said aperture.

ln a furnace, the combination with heatingI means, of a hood Vformed with an apertured cover, a receptacle spaced beneath the aperture, and means Yfor closing said aperture.

6. ln a furnace, the combination with heating means, of a hood Yformed with an apertured cover, a chute communicating` with the aperture of said cover, and a receptacle beneath said aperture.

ln testimony whereof l hereunto afliX my signature in presence of two witnesses.

. 1WlLlQilAh/l H. RILEY.

NVi tnesses:

lton'r. L. FnNwreK, A. M. DUNLAr. 

